Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. QML and Qt Quick
  4. Android emulator blank screen and 0x502 error
Forum Updated to NodeBB v4.3 + New Features

Android emulator blank screen and 0x502 error

Scheduled Pinned Locked Moved Unsolved QML and Qt Quick
10 Posts 3 Posters 3.3k Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • M Offline
    M Offline
    MH2012
    wrote on last edited by
    #1

    Hi

    I have made a QML/QtQuick application that ran fine on the emulator until recently, where I have experienced some annoying issues.

    When running the app in Android Emulator x86_64 the screen is blank with the following application output:

    I example.DartApp: Late-enabling -Xcheck:jni
I example.DartApp: Using CollectorTypeCC GC.
W example.DartApp: Unexpected CPU variant for x86: x86_64.
W example.DartApp: Known variants: atom, sandybridge, silvermont, goldmont, goldmont-plus, tremont, kabylake, default
D CompatibilityChangeReporter: Compat change id reported: 171979766; UID 10190; state: ENABLED
D CompatibilityChangeReporter: Compat change id reported: 242716250; UID 10190; state: ENABLED
W ziparchive: Unable to open '/data/app/~~zcOdc8M6Np7kQCj1gu1zrQ==/org.qtproject.example.DartApp-uBN0uSbORWzeZkpUnTTwVw==/base.dm': No such file or directory
W ziparchive: Unable to open '/data/app/~~zcOdc8M6Np7kQCj1gu1zrQ==/org.qtproject.example.DartApp-uBN0uSbORWzeZkpUnTTwVw==/base.dm': No such file or directory
D nativeloader: Configuring clns-6 for other apk /data/app/~~zcOdc8M6Np7kQCj1gu1zrQ==/org.qtproject.example.DartApp-uBN0uSbORWzeZkpUnTTwVw==/base.apk. target_sdk_version=34, uses_libraries=, library_path=/data/app/~~zcOdc8M6Np7kQCj1gu1zrQ==/org.qtproject.example.DartApp-uBN0uSbORWzeZkpUnTTwVw==/lib/x86_64:/data/app/~~zcOdc8M6Np7kQCj1gu1zrQ==/org.qtproject.example.DartApp-uBN0uSbORWzeZkpUnTTwVw==/base.apk!/lib/x86_64, permitted_path=/data:/mnt/expand:/data/user/0/org.qtproject.example.DartApp
V GraphicsEnvironment: Currently set values for:
V GraphicsEnvironment:   angle_gl_driver_selection_pkgs=[]
V GraphicsEnvironment:   angle_gl_driver_selection_values=[]
V GraphicsEnvironment: ANGLE GameManagerService for org.qtproject.example.DartApp: false
V GraphicsEnvironment: org.qtproject.example.DartApp is not listed in per-application setting
V GraphicsEnvironment: Neither updatable production driver nor prerelease driver is supported.
D libEGL  : loaded /vendor/lib64/egl/libEGL_emulation.so
D libEGL  : loaded /vendor/lib64/egl/libGLESv1_CM_emulation.so
D libEGL  : loaded /vendor/lib64/egl/libGLESv2_emulation.so
D CompatibilityChangeReporter: Compat change id reported: 247079863; UID 10190; state: ENABLED
W ziparchive: Unable to open '/data/app/~~zcOdc8M6Np7kQCj1gu1zrQ==/org.qtproject.example.DartApp-uBN0uSbORWzeZkpUnTTwVw==/base.dm': No such file or directory
W ziparchive: Unable to open '/data/app/~~zcOdc8M6Np7kQCj1gu1zrQ==/org.qtproject.example.DartApp-uBN0uSbORWzeZkpUnTTwVw==/base.dm': No such file or directory
D QtLoader: Class org.qtproject.qt.android.multimedia.QtAudioDeviceManager does not implement setActivity method
I QtLoader: Sleeping for 3000ms, helping the native debugger to settle. Use the env QT_ANDROID_DEBUGGER_MAIN_THREAD_SLEEP_MS variable to change this value.
I QtCore  : Start
I Qt      : qt started
D CompatibilityChangeReporter: Compat change id reported: 210923482; UID 10190; state: ENABLED
D CompatibilityChangeReporter: Compat change id reported: 237531167; UID 10190; state: DISABLED
W OpenGLRenderer: Unknown dataspace 0
W OpenGLRenderer: Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
W OpenGLRenderer: Failed to initialize 101010-2 format, error = EGL_SUCCESS
I Gralloc4: mapper 4.x is not supported
E OpenGLRenderer: Unable to match the desired swap behavior.
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502

    My OS is Debian 12, but I have the same errors on Windows 10 and up until recently also Arch. My graphics card is a Nvidia GTX 780 running on Tesla 470 drivers (on Arch linux I used legacy drivers, which I suppose is also the case on Debian).

    I can succesfully deploy the APK release packet on my Android phone.

    Some wise guys in here that can help me to solve this issue?

    Martin Hansen

    1 Reply Last reply
    1
    • - Offline
      - Offline
      -_- name
      wrote on last edited by -_- name
      #2

      same issue but on windows when starting qml/c++ android app
      compiler output warnings:
      Warning: QML import could not be resolved in any of the import paths: QtQuick.Controls.Windows
      Warning: QML import could not be resolved in any of the import paths: QtQuick.Controls.macOS
      Warning: QML import could not be resolved in any of the import paths: QtQuick.Controls.iOS
      Warning: QML import could not be resolved in any of the import paths: TransitionItem
      Warning: QML import could not be resolved in any of the import paths: EventList
      Warning: QML import could not be resolved in any of the import paths: QtQuickUltralite.Extras

      App output:
      Unexpected CPU variant for x86: x86_64.
      Known variants: atom, sandybridge, silvermont, goldmont, goldmont-plus, tremont, kabylake, default
      W ziparchive: Unable to open '/data/app/~~NdE-lOGvg4LbsL0MvWpjcA==/org.qtproject.example.iSecAppApp-MAXwyjlaI0EtQ50fEWez5Q==/base.dm': No such file or directory
      ClassLoader referenced unknown path:
      W OpenGLRenderer: Unknown dataspace 0
      W OpenGLRenderer: Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
      W OpenGLRenderer: Failed to initialize 101010-2 format, error = EGL_SUCCESS
      E OpenGLRenderer: Unable to match the desired swap behavior.
      E emuglGLESv2_enc: device/generic/goldfish-opengl/system/GLESv2_enc/GL2Encoder.cpp:s_glGetUniformLocation:2206 GL error 0x502
      .....

      1 Reply Last reply
      0
      • - Offline
        - Offline
        -_- name
        wrote on last edited by -_- name
        #3

        ok (-_0)
        Problem solved by installing x86 compiler and installing x86 image for emulator

        M 1 Reply Last reply
        1
        • - -_- name

          ok (-_0)
          Problem solved by installing x86 compiler and installing x86 image for emulator

          M Offline
          M Offline
          MH2012
          wrote on last edited by MH2012
          #4

          @_-name
          What api Level did you download? The only one I can find in Android Studio is for Android 9 and earlier. I need for android 14 and there is only x86_64 images available.

          - 2 Replies Last reply
          0
          • M MH2012

            @_-name
            What api Level did you download? The only one I can find in Android Studio is for Android 9 and earlier. I need for android 14 and there is only x86_64 images available.

            - Offline
            - Offline
            -_- name
            wrote on last edited by
            #5

            @MH2012 e4db34e1-330f-4760-ae9d-c43e7ba435b4-image.png

            - 1 Reply Last reply
            0
            • - -_- name

              @MH2012 e4db34e1-330f-4760-ae9d-c43e7ba435b4-image.png

              - Offline
              - Offline
              -_- name
              wrote on last edited by
              #6

              @_-name said in Android emulator blank screen and 0x502 error:

              @MH2012 e4db34e1-330f-4760-ae9d-c43e7ba435b4-image.png
              eeee4502-9815-4aa0-90bd-efdaf07ad102-image.png

              1 Reply Last reply
              0
              • M MH2012

                @_-name
                What api Level did you download? The only one I can find in Android Studio is for Android 9 and earlier. I need for android 14 and there is only x86_64 images available.

                - Offline
                - Offline
                -_- name
                wrote on last edited by
                #7

                @MH2012 yes it sounds like lvl 9 will not working, but i ported app on samsung s24 14andr -> works

                1 Reply Last reply
                0
                • M Offline
                  M Offline
                  morte
                  wrote on last edited by
                  #8

                  @MH2012 https://bugreports.qt.io/browse/QTBUG-127079

                  1 Reply Last reply
                  0
                  • M Offline
                    M Offline
                    MH2012
                    wrote on last edited by MH2012
                    #9

                    Thanks for the replies. I will try to figure it out. Alternatively, I will continuing developing my application targeting X86 and build an APK for X86_64

                    1 Reply Last reply
                    0
                    • M Offline
                      M Offline
                      MH2012
                      wrote on last edited by
                      #10

                      I don't know whats happened. But after trying today, the problem perished. Maybe an sdk update did it. Don't hope it will get back. Problem solved for now.

                      1 Reply Last reply
                      0

                      • Login
                      • Login or register to search.
                      • First post
                        Last post
                      0
                      • Categories
                      • Recent
                      • Tags
                      • Popular
                      • Users
                      • Groups
                      • Search
                      • Get Qt Extensions
                      • Unsolved